马超;王任信;尹政;朱智富;刘云岗;

1:山东大学能源与动力工程学院2:寿光康跃增压器有限公司

    摘要：失速和喘振现象一直是离心压气机研究领域的重点和难点,对于压气机失速或喘振时的非定常效应的研究具有重要意义。对一车用涡轮增压器离心压气机进行了设计转速下喘振临界点的非稳态数值模拟,针对压气机各部件在该工况下的非定常流动状况进行了详尽阐述,从而为深入认识压气机失速和喘振现象及其机理研究提供参考。

    关键词： 离心压气机;;喘振临界点;;非稳态流动;;数值模拟

    Abstract: Stall and surge phenomenon are the research hotpots of centrifugal compressor.The study of steady effect of stall and surge is typically important.An automobile-used centrifugal compressor is simulated in surge point at design speed,and unsteady-flow conditions of all compressor parts are elaborated.It is helpful for further understanding of stall and surge phenomenon and their mechanism.

    Keywords:Centrifugal Compressor;Surge Point;Unsteady Flow;Numerical Simulation

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